Ensure all UDFs have description set in their DDL #354

udfs/community/cw_csvld.sqlx

@@ -17,7 +17,11 @@ config { hasOutput: true }
 
 CREATE OR REPLACE FUNCTION ${self()}(text string, comma string, quote string,len INT64)
 RETURNS array<string>
-LANGUAGE js AS """
+LANGUAGE js 
+OPTIONS (
+    description="Determine if value exists in json (a string containing a JSON array)."
+)
+AS """
 
     var ret = []
     var index = 0;

udfs/community/cw_error_number.sqlx

@@ -18,7 +18,11 @@ config { hasOutput: true }
 /* TODO: Convert BQ generated error string to a number appropriate for other DBs */
 CREATE OR REPLACE FUNCTION ${self()}( errmsg string)
 RETURNS int64
-LANGUAGE js AS """
+LANGUAGE js 
+OPTIONS (
+    description="Convert BQ generated error string to a number appropriate for other DBs"
+)
+AS """
    if ( ! errmsg  )
       return 0;
    return 1;

udfs/community/cw_error_severity.sqlx

@@ -18,7 +18,11 @@ config { hasOutput: true }
 /* TODO: Convert BQ generated error string to a number appropriate for other DBs */
 CREATE OR REPLACE FUNCTION ${self()}( errmsg string)
 RETURNS int64
-LANGUAGE js AS """
+LANGUAGE js 
+OPTIONS (
+    description="Convert BQ generated error string to a number appropriate for other DBs"
+)
+AS """
    if ( ! errmsg  )
       return 0;
    return 1;

udfs/community/cw_error_state.sqlx

@@ -18,7 +18,11 @@ config { hasOutput: true }
 /* TODO: Convert BQ generated error string to a number appropriate for other DBs */
 CREATE OR REPLACE FUNCTION ${self()}( errmsg string)
 RETURNS int64
-LANGUAGE js AS """
+LANGUAGE js 
+OPTIONS (
+    description="Convert BQ generated error string to a number appropriate for other DBs"
+)
+AS """
    if ( ! errmsg  )
       return 0;
    return 1;

udfs/community/cw_regex_mode.sqlx

@@ -17,7 +17,10 @@ config { hasOutput: true }
 
  /* Internal function */
 CREATE OR REPLACE FUNCTION ${self()}(mode STRING) RETURNS STRING
-LANGUAGE js AS """
+LANGUAGE js 
+OPTIONS (
+    description="""Internal function"""
+) AS """
   var m = '';
   if (mode == 'i' || mode == 'm')
     m += mode;

udfs/community/cw_regexp_instr_2.sqlx

@@ -15,7 +15,10 @@ config { hasOutput: true }
  * limitations under the License.
  */
 
-CREATE OR REPLACE FUNCTION ${self()}(haystack STRING, needle STRING) RETURNS INT64 AS (
+CREATE OR REPLACE FUNCTION ${self()}(haystack STRING, needle STRING) RETURNS INT64 
+OPTIONS (
+    description="""Implements regexp_instr/2 (haystack, needle)."""
+) AS (
   CASE WHEN REGEXP_CONTAINS(haystack, needle) THEN
     LENGTH(REGEXP_REPLACE(haystack, CONCAT('(.*?)', needle, '(.*)'), '\\1')) + 1
   WHEN needle IS NULL OR haystack IS NULL THEN

udfs/community/cw_regexp_instr_3.sqlx

@@ -15,7 +15,10 @@ config { hasOutput: true }
  * limitations under the License.
  */
 
-CREATE OR REPLACE FUNCTION ${self()}(haystack STRING, needle STRING, start INT64) RETURNS INT64 AS (
+CREATE OR REPLACE FUNCTION ${self()}(haystack STRING, needle STRING, start INT64) RETURNS INT64 
+OPTIONS (
+    description="""Implements regexp_instr/3 (haystack, needle, start)."""
+) AS (
   CASE WHEN REGEXP_CONTAINS(substr(haystack, GREATEST(start, 1)), needle) THEN
     LENGTH(REGEXP_REPLACE(substr(haystack, GREATEST(start, 1)), CONCAT('(.*?)', needle, '(.*)'), '\\1')) + GREATEST(start, 1)
   WHEN needle IS NULL OR haystack IS NULL or start IS NULL THEN

udfs/community/cw_regexp_instr_4.sqlx

@@ -16,7 +16,10 @@ config { hasOutput: true }
  */
 
 CREATE OR REPLACE FUNCTION ${self()}(haystack STRING, regexp STRING, p INT64, o INT64) RETURNS INT64
-LANGUAGE js AS """
+LANGUAGE js 
+OPTIONS (
+    description="""Implements regexp_instr/4 (haystack, regexp, p, o)."""
+) AS """
   if (haystack == null || regexp == null || o == null) return null;
   p = p -1;
   o = o -1;

udfs/community/cw_regexp_instr_5.sqlx

@@ -15,7 +15,10 @@ config { hasOutput: true }
  * limitations under the License.
  */
 
-CREATE OR REPLACE FUNCTION ${self()}(haystack STRING, regexp STRING, p INT64, o INT64, returnopt INT64) RETURNS INT64 AS
+CREATE OR REPLACE FUNCTION ${self()}(haystack STRING, regexp STRING, p INT64, o INT64, returnopt INT64) RETURNS INT64 
+OPTIONS (
+    description="""Implements regexp_instr/5 (haystack, regexp, p, o, returnopt)."""
+) AS
 (
    ${ref("cw_regexp_instr_generic")}(haystack, regexp, p, o, returnopt, ${ref("cw_regex_mode")}(''))
 );

udfs/community/cw_regexp_instr_6.sqlx

@@ -15,7 +15,10 @@ config { hasOutput: true }
  * limitations under the License.
  */
 
- CREATE OR REPLACE FUNCTION ${self()}(haystack STRING, regexp STRING, p INT64, o INT64, returnopt INT64, mode STRING) RETURNS INT64 AS
+CREATE OR REPLACE FUNCTION ${self()}(haystack STRING, regexp STRING, p INT64, o INT64, returnopt INT64, mode STRING) RETURNS INT64 
+OPTIONS (
+    description="""Implements regexp_instr/6 (haystack, regexp, p, o, returnopt, mode)."""
+) AS
 (
    ${ref("cw_regexp_instr_generic")}(haystack, regexp, p, o, returnopt, ${ref("cw_regex_mode")}(mode))
 );

udfs/community/cw_regexp_instr_generic.sqlx

@@ -22,7 +22,10 @@ config { hasOutput: true }
     // case 'x': not supported
 */
 CREATE OR REPLACE FUNCTION ${self()}(haystack STRING, regexp STRING, p INT64, o INT64, returnopt INT64, mode STRING) RETURNS INT64
-LANGUAGE js AS """
+LANGUAGE js
+OPTIONS (
+    description="""Implements regexp_instr_generic (haystack, needle, position, occurence, returnopt)."""
+) AS """
   if (haystack == null || regexp == null || p == null || o == null || returnopt == null || mode == null) return null;
   p = p -1;
   o = o -1;

udfs/community/cw_regexp_replace_4.sqlx

@@ -15,7 +15,10 @@ config { hasOutput: true }
  * limitations under the License.
  */
 
-CREATE OR REPLACE FUNCTION ${self()}(haystack STRING, regexp STRING, replacement STRING, offset INT64) RETURNS STRING AS
+CREATE OR REPLACE FUNCTION ${self()}(haystack STRING, regexp STRING, replacement STRING, offset INT64) RETURNS STRING
+OPTIONS (
+    description="""Implements regexp_replace/4 (haystack, regexp, replacement, offset)."""
+) AS
 (
    ${ref("cw_regexp_replace_generic")}(haystack, regexp, replacement, offset, 0, ${ref("cw_regex_mode")}(''))
 );

udfs/community/cw_regexp_replace_5.sqlx

@@ -15,7 +15,10 @@ config { hasOutput: true }
  * limitations under the License.
  */
 
-CREATE OR REPLACE FUNCTION ${self()}(haystack STRING, regexp STRING, replacement STRING, offset INT64, occurrence INT64) RETURNS STRING AS
+CREATE OR REPLACE FUNCTION ${self()}(haystack STRING, regexp STRING, replacement STRING, offset INT64, occurrence INT64) RETURNS STRING 
+OPTIONS (
+    description="""Implements regexp_replace/5 (haystack, regexp, replacement, offset, occurrence)."""
+) AS
 (
    ${ref("cw_regexp_replace_generic")}(haystack, regexp, replacement, offset, occurrence, ${ref("cw_regex_mode")}(''))
 );

udfs/community/cw_regexp_replace_6.sqlx

@@ -15,7 +15,10 @@ config { hasOutput: true }
  * limitations under the License.
  */
 
-CREATE OR REPLACE FUNCTION ${self()}(haystack STRING, regexp STRING, replacement STRING, p INT64, o INT64, mode STRING) RETURNS STRING AS
+CREATE OR REPLACE FUNCTION ${self()}(haystack STRING, regexp STRING, replacement STRING, p INT64, o INT64, mode STRING) RETURNS STRING 
+OPTIONS (
+    description="""Implements regexp_replace/6 (haystack, regexp, replacement, p, o, mode)."""
+) AS
 (
    ${ref("cw_regexp_replace_generic")}(haystack, regexp, replacement, p, o, ${ref("cw_regex_mode")}(''))
 );

udfs/community/cw_regexp_replace_generic.sqlx

@@ -17,7 +17,11 @@ config { hasOutput: true }
 
  /* Generic regexp_replace, which is the 6-args version with regexp_mode already decoded */
 CREATE OR REPLACE FUNCTION ${self()}(haystack STRING, regexp STRING, replacement STRING, offset INT64, occurrence INT64, mode STRING) RETURNS STRING
-LANGUAGE js AS """
+LANGUAGE js
+OPTIONS (
+    description="""Generic regexp_replace, which is the 6-args version with regexp_mode already decoded"""
+)
+AS """
   if (haystack == null || regexp == null || replacement == null || offset == null || occurrence == null || mode == null) return null;
   replacement = replacement.replace('\\\\', '$');
   let regExp = new RegExp(regexp, mode);

udfs/community/cw_regexp_split.sqlx

@@ -17,7 +17,11 @@ config { hasOutput: true }
 
 CREATE OR REPLACE FUNCTION ${self()}(text string, delim string, flags string)
 RETURNS array<struct<tokennumber int64, token string>>
-LANGUAGE js AS """
+LANGUAGE js 
+OPTIONS (
+    description="""Implements regexp split on delim"""
+)
+AS """
     var idx = 0;
     var nxt = function() {
         idx ++;

udfs/community/cw_regexp_substr_5.sqlx

@@ -16,7 +16,10 @@ config { hasOutput: true }
  */
 
 /* Implements regexp_substr/5 (haystack, needle, position, occurence, mode) */
-CREATE OR REPLACE FUNCTION ${self()}(h STRING, n STRING, p INT64, o INT64, mode STRING) RETURNS STRING AS
+CREATE OR REPLACE FUNCTION ${self()}(h STRING, n STRING, p INT64, o INT64, mode STRING) RETURNS STRING 
+OPTIONS (
+    description="""Implements regexp_substr/5 (haystack, needle, position, occurence, mode)"""
+) AS
 (
     ${ref("cw_regexp_substr_generic")}(h, n, p, o, ${ref("cw_regex_mode")}(mode), 0)
 );

udfs/community/cw_regexp_substr_6.sqlx

@@ -16,7 +16,10 @@ config { hasOutput: true }
  */
 
 /* Implements regexp_substr/6 (haystack, needle, position, occurence, mode, captured_subexp) */
-CREATE OR REPLACE FUNCTION ${self()}(h STRING, n STRING, p INT64, o INT64, mode STRING, g INT64) RETURNS STRING AS
+CREATE OR REPLACE FUNCTION ${self()}(h STRING, n STRING, p INT64, o INT64, mode STRING, g INT64) RETURNS STRING
+OPTIONS (
+    description="""Implements regexp_substr/6 (haystack, needle, position, occurence, mode, captured_subexp)"""
+) AS
 (
     ${ref("cw_regexp_substr_generic")}(h, n, p, o, ${ref("cw_regex_mode")}(mode), g)
 );

udfs/community/cw_regexp_substr_generic.sqlx

@@ -16,7 +16,10 @@ config { hasOutput: true }
  */
 
 CREATE OR REPLACE FUNCTION ${self()}(str STRING, regexp STRING, p INT64, o INT64, mode STRING, g INT64) RETURNS STRING
-LANGUAGE js AS """
+LANGUAGE js
+OPTIONS (
+    description="""Implements regexp_substr_generic (str, regexp, p, o, mode, g)."""
+) AS """
   if (str == null || regexp == null || p == null || o == null || mode == null) return null;
   var r = new RegExp(regexp, mode);
   var m = str.substring(p - 1).matchAll(r);

udfs/community/jaccard.sqlx

@@ -17,7 +17,11 @@ config { hasOutput: true }
 
 CREATE OR REPLACE FUNCTION ${self()}(a STRING, b STRING)
 RETURNS FLOAT64
-LANGUAGE js AS r"""
+LANGUAGE js 
+OPTIONS (
+    description="Compute Jaccard distance."
+) 
+AS r"""
   let intersectSize = 0;
 
   if(a && b) {

udfs/community/json_typeof.sqlx

@@ -19,6 +19,9 @@ config { hasOutput: true }
 -- Input: JSON string
 -- Output: The JSON value type of the argument or NULL if the argument is an unknown value
 CREATE OR REPLACE FUNCTION ${self()}(json STRING)
+OPTIONS (
+    description="Converts JSON string to the JSON value type of the argument or NULL if the argument is an unknown value."
+)
 AS ( (
     SELECT AS VALUE
       CASE

udfs/community/linear_interpolate.sqlx

@@ -22,7 +22,10 @@ config { hasOutput: true }
 -- next: the x,y coordinate of the following value
 -- Output: the interpolated y value
 CREATE OR REPLACE FUNCTION ${self()}(pos INT64, prev STRUCT<x INT64,y FLOAT64>, next STRUCT<x INT64,y FLOAT64>)
-RETURNS FLOAT64 AS (
+RETURNS FLOAT64
+OPTIONS (
+    description="Linear_interpolate."
+) AS (
   CASE
     WHEN pos IS NULL OR prev IS NULL OR next IS NULL THEN NULL
     ELSE

udfs/community/linear_regression.sqlx

@@ -16,6 +16,9 @@ config { hasOutput: true }
  */
 
 CREATE OR REPLACE FUNCTION ${self()}(data ARRAY<STRUCT<X FLOAT64, Y FLOAT64>>)
+OPTIONS (
+    description="Linear Regression."
+)
 AS ((
      WITH results AS (
        WITH sums AS (

udfs/community/meters_to_miles.sqlx

@@ -15,6 +15,9 @@ config { hasOutput: true }
  * limitations under the License.
  */
 
-CREATE OR REPLACE FUNCTION ${self()}(input_meters FLOAT64) AS (
+CREATE OR REPLACE FUNCTION ${self()}(input_meters FLOAT64) 
+OPTIONS (
+    description="Convert meters to miles."
+) AS (
   input_meters / 1609.344
 );

udfs/community/miles_to_meters.sqlx

@@ -15,6 +15,9 @@ config { hasOutput: true }
  * limitations under the License.
  */
 
-CREATE OR REPLACE FUNCTION ${self()}(input_miles FLOAT64) AS (
+CREATE OR REPLACE FUNCTION ${self()}(input_miles FLOAT64) 
+OPTIONS (
+    description="Convert miles to meters."
+) AS (
   input_miles * 1609.344
 );